Add tuxreaperd micro-init and in-container zombie-reaping tests for 0.2

DEVLOG.md

@@ -1,5 +1,22 @@
 # Tux-Dock Development Log
 
+## 0.2-beta
+
+This release introduces `tuxreaperd`, a micro init system for containers.
+
+### Micro init
+
+- Added `tuxreaperd.c`, a small C daemon used as PID 1 inside containers created by tux-dock.
+- Runs as a subreaper (`PR_SET_CHILD_SUBREAPER`) with a SIGCHLD handler that reaps every reparented/terminated descendant, so orphaned processes never accumulate as zombies.
+- Forwards SIGTERM/SIGINT/SIGHUP to the primary workload and propagates its exit status (128 + signal for signal deaths).
+- `compile.sh` statically builds it (`gcc -O2 -static -Wall -Wextra tuxreaperd.c -o build/tuxreaperd`) alongside the rest of the tree.
+- `DockerManager::createContainer` bind-mounts `tuxreaperd` into the container as PID 1 and resolves the binary next to the `tux-dock` executable when it is not in the current directory.
+
+### Tests
+
+- Added `tuxreaperd-zombie-tests`, an in-container test suite that boots a container with `tuxreaperd` as PID 1 and verifies orphaned grandchildren are reaped (zero zombies), exit status is propagated, and `docker stop` cleanly shuts down via forwarded SIGTERM (exit 143).
+- The HTML web test view now includes a "Tuxreaperd Zombie Reaping" section alongside the Docker integration and TUI transcript sections.
+
 ## 0.1.2-beta
 
 This release adds signal trapping to prevent state corruption during long-running Docker operations.